Topcon mmGPS 3D Paver, Reference Manual

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2D Paving Applications
mmGPS 3D Paver Reference Manual
6-16
Paving City Streets with
Sonics
When paving city streets, the general requirement is to lay a mat that
is so many inches above the base at the centerline and to match the
curb and gutter (Figure 6-15). For this application, sonic control is
used on both sides.
Figure 6-15. Paving to Center Line and to Match Curb
1. Before paving, make sure the machine is properly setup, cross
slope is calibrated, and trackers are set in the correct position. See
Chapter 3 for details.
2. Position right tracker over lip of gutter and left tracker past the
centerline on the base material (Figure 6-16).
Figure 6-16. Positioning Tracker Over Gutter
3. Press the
Elevation Control key (
Figure 6-17 on page 6-17
)
.
4. Enter an offset value into the
Elevation set point Set
entry box.
5. Press
Survey
to quickly lock on-grade.
6. Press
Ok
to return to the Main Screen.
Subgrade
Centerline
of Road
Centerline
of Road
Subgrade
Sonic Tracker II
T
Soni c Tr a cke r II
T